Four Sigmatic Reviews

Four Sigmatic has an overall rating of 3.6 based on 16 reviews. Customer feedback on Four Sigmatic is mixed.

3.6/5.0

16 reviews

5 Stars

8

4 Stars

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3 Stars

4

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1 Star

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All Four Sigmatic Reviews (16)
brandon.Lineberger
May 05, 2026
"Honestly, my sleep did a total 180"
After about a week, I noticed I was actually sleeping deeper and not waking up a million times like usual. It felt almost dramatic how much better my nights got. Happy with it so far
cesar1976
May 03, 2026
"Actually noticed a real difference"
I didn’t expect much when I first tried this mushroom coffee, but I actually do feel more focused when I drink it. It gives me steady energy without that jittery coffee feeling, which I really appreciate. The taste was a little different at first and took me a couple days to get used to, but now I actually like it. I’ve been having it most mornings and it’s been a nice part of my routine...
tammy.Chan
April 13, 2026
"Tasted really weird to me"
I really wanted to like this, but the flavor just came off muddy and bitter to me. It had a weird aftertaste that I couldn’t get past. I also reached out to support and got what felt like a copy-paste response, which was frustrating and didn’t really help.
VincentMiller
April 12, 2026
"Showed up way quicker than I thought"
I ordered from Four Sigmatic kind of last minute because I was running low and figured I’d be waiting a while, especially since packages to my place can be hit or miss depending on the week. To my surprise, the box showed up in just a few days, which was faster than I expected.

The tracking was easy to follow too, and everything inside was packed nicely when it arrived. Nothing super dramatic to report, I was just happy it got here quickly and without any issues. I’d definitely order again, even just for the fast shipping.
fred1977
March 31, 2026
"Takes a little work to mix"
It’s okay overall, but it’s not the easiest thing to prepare. I had to stir it for a while, and even then I still ended up with a few small clumps. The taste is fine once it’s mixed, but I’m not sure how to explain it, I just wish it dissolved a bit smoother
Louise-gorman
March 28, 2026
"Managing the subscription was way more annoying than..."
Managing the subscription was way more annoying than I expected. Canceling took forever, and I kept thinking, why does this have to be so complicated?? It really should’ve been a quick, simple process.
KatherineBrady
February 16, 2026
"The ingredients feel really legit and clean..."
The ingredients feel really legit and clean, which I appreciate. the only downside was my timing—I started using it right when my schedule got hectic, so I didn’t get to be as consistent as I wanted. Still, I like what I’m seeing so far.
Lily_platt80
January 19, 2026
"Helps me feel a little more balanced"
I’ve been taking Four Sigmatic for a few weeks now, mainly hoping it would help with stress and my mood a bit. I wasn’t expecting some huge overnight change, but I do feel a little calmer in the mornings and not as easily irritated later in the day

The taste was easy to get used to, especially mixed into coffee or oat milk. Shipping was normal and everything arrived fine, and while it’s definitely not a miracle fix, it’s turned into a small part of my routine that I actually look forward to
sue1996
January 16, 2026
"The taste was okay, but the caffeine felt..."
The taste was okay, but the caffeine felt kinda low for me. I was hoping it would give me a bit more of a boost
tony_Crotty05
January 13, 2026
"Arrived in Great Shape"
When the package showed up, I was happy to see it had been packed so well. Everything looked secure, and the box came in great shape with no issues at all.
ShawnGraham_16
January 12, 2026
"Pretty pricey for what it is"
It just feels too expensive for what you actually get. Like, it works or whatever, but not enough to make the price make sense. I was expecting more, and for me it just wasn’t really worth the money.
tamaracoronado7665
January 08, 2026
"Was a little rough on my stomach"
I wanted to like it, but it didn’t sit super well with me, lol. My stomach felt a bit upset after taking it, so I guess it just wasn’t a good fit for me...
Takako.santana
January 02, 2026
"I grabbed a few coffee mixes from..."
I grabbed a few coffee mixes from foursigmatic.com, the box was exactly right. No missing packets, no random flavors I didn’t choose, nothing weird like that. I know that sounds basic, but I was actually happy about it.

The shipping email was easy enough to follow, and the packaging was fine. Not life-changing packaging or anything, but everything arrived in good shape, which is the main thing. I have had other places mess up simple orders before, so this felt oddly impressive.

Overall it was a simple experience. I ordered the stuff, they sent the correct stuff, and that was that. Truly a flawless execution of online coffee procurement, I guess. I’d probably order again.
RichardStephens_60
December 18, 2025
"Decent boost, but I’m not blown away"
I picked up Four Sigmatic hoping it would help with energy and focus on work mornings. It does give me a smoother lift than regular coffee, and I don’t get that shaky, over-caffeinated feeling, which I definitely appreciate.

That said, the focus part is inconsistent for me. Some mornings I feel a difference, and other times it just feels like regular coffee with a mushroom twist. The taste is fine, not something I’d crave, and I got a little frustrated waiting to see if the focus benefits would really kick in. I might buy it again if it’s on sale, but I’m not rushing to restock
WilliamMacias_20
December 10, 2025
"I’ve actually been really liking this mushroom..."
I’ve actually been really liking this mushroom blend. The taste is good, which was my main concern since I figured if I’m going to drink it most mornings, it has to be something I don’t dread. I like the mix of mushrooms in it too, so I feel like it makes sense to keep using it as part of my routine
miguel-Hurrell
December 07, 2025
"Helpful support, but why so slow??"
I did get a reply to my email, so that was good, but it took a couple of days. The answer helped enough once they got back to me, I just wish the response time was quicker??
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